Home / 1,118,412.20-1,677,180.90-408,074.60

Finding the Fourth Proportional to 1,118,412.20, 1,677,180.90 and 408,074.60

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Solution

The fourth proportional to 1,118,412.20, 1,677,180.90 and 408,074.60 is: 611,952.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,412.20 : 1,677,180.90 = 408,074.60 : x
  2. Step 2: Convert to fraction form
    1,118,412.20/1,677,180.90 = 408,074.60/x
  3. Step 3: Cross multiply
    1,118,412.20x = 1,677,180.90 × 408,074.60
  4. Step 4: Simplify right side
    1,118,412.20x = 684,414,924,895.14
  5. Step 5: Solve for x
    x = 684,414,924,895.14/1,118,412.20
  6. Step 6: Final answer
    x = 611,952.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.